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Theoretical Heterotrophic Yields
Robert M. Sykes
Journal (Water Pollution Control Federation)
Vol. 47, No. 3, Part I (Mar., 1975), pp. 591-600
Published by: Water Environment Federation
Stable URL: http://www.jstor.org/stable/25038666
Page Count: 10
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By using published elemental analyses of microbial cells, the stoichiometry of the incorporation of substrate into biomass is derived. The adenosine triphosphate required to drive this synthesis is well established. Therefore, the derived stoichiometry is combined with the adenosine triphosphate yield of known catabolic pathways to derive theoretical cell yields. These theoretical yields are calculated for a variety of carbon and nitrogen sources and compared with published data for both pure and mixed microbial cultures. The comparison indicates that theoretical yields so calculated are excellent estimates of empirical yield coefficients. The computational procedure, therefore, provides a reliable means of making preliminary cell yield estimates for a variety of microbial growth processes in both wastewater treatment and industrial fermentations.
Journal (Water Pollution Control Federation) © 1975 Water Environment Federation